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derp: set NotBefore and NotAfter in DERP server's metacert

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Fixes regression from e415991256 that
only affected Windows users because Go only on Windows delegates x509
cert validation to the OS and Windows as unhappy with our "metacert"
lacking NotBefore and NotAfter.

Fixes #705
This commit is contained in:
Brad Fitzpatrick 2020-08-24 14:55:26 -07:00
parent a903d6c2ed
commit 169ff22a84
1 changed files with 3 additions and 0 deletions
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3
derp/derp_server.go
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@ -306,6 +306,9 @@ func (s *Server) initMetacert() {
Subject: pkix.Name{
CommonName: fmt.Sprintf("derpkey%x", s.publicKey[:]),
},
// Windows requires NotAfter and NotBefore set:
NotAfter: time.Now().Add(30 * 24 * time.Hour),
NotBefore: time.Now().Add(-30 * 24 * time.Hour),
}
cert, err := x509.CreateCertificate(crand.Reader, tmpl, tmpl, pub, priv)
if err != nil {